Home / 28,319.75-42,421.30-16,604.72

Finding the Fourth Proportional to 28,319.75, 42,421.30 and 16,604.72

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Solution

The fourth proportional to 28,319.75, 42,421.30 and 16,604.72 is: 24,872.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,319.75 : 42,421.30 = 16,604.72 : x
  2. Step 2: Convert to fraction form
    28,319.75/42,421.30 = 16,604.72/x
  3. Step 3: Cross multiply
    28,319.75x = 42,421.30 × 16,604.72
  4. Step 4: Simplify right side
    28,319.75x = 704,393,714.00
  5. Step 5: Solve for x
    x = 704,393,714.00/28,319.75
  6. Step 6: Final answer
    x = 24,872.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.